added insertion sort in c++

SORTING/C++/insertionSort.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+using namespace std;
+
+void insertionSort(int arr[], int n)
+{
+    int temp,j;
+    for (int i = 1; i < n; i++)
+    {
+        temp = arr[i];
+        j = i - 1;
+        while (j >= 0 && arr[j] > temp)
+        {   // Moving the elements of array that are greater than temp, to one position ahead of their current position
+            arr[j + 1] = arr[j];
+            j = j - 1;
+        }
+        arr[j + 1] = temp;
+    }
+}
+
+int main()
+{
+    int n;
+    cout << "Enter the length of array:\n";
+    cin >> n;
+    int arr[n];
+    cout << "Enter the elements of array:\n";
+    for (int i = 0; i < n; i++)
+        cin >> arr[i];     // Taking input
+    insertionSort(arr, n); //Calling of insertionSort function
+    cout << "Sorted array elements:\n";
+    for (int i = 0; i < n; i++)
+        cout << arr[i] << " "; //Printing out elements
+    return 0;
+}